vps/update.sh

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#!/bin/bash
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services=(coturn element etebase nginx-www searxng synapse syncthing vw)
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needs_backup=(etebase synapse vw)
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rel_path="$(dirname "$0")"
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function pull {
[[ "$1" == "coturn" ]] && local sudo="sudo"
$sudo docker-compose -f "$rel_path/$1/docker-compose.yaml" pull
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}
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# Runs compose up & eventually make a backup before
# $1 = project name
function up {
if echo "${needs_backup[*]}" | grep -qP "\b$1\b" && has_update "$1"; then
sudo "$rel_path/backup.sh" "$1" --norestart
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fi
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[[ "$1" == "coturn" ]] && local sudo="sudo"
$sudo docker-compose -f "$rel_path/$1/docker-compose.yaml" up -d
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}
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# To use after pulling latest images of project
# Checks if at least one container can be updated
# $1 = project name
function has_update {
readarray -t cont_list < <(docker-compose -f "$1/docker-compose.yaml" ps -a | tail -n+3 | cut -d ' ' -f 1)
for cont in "${cont_list[@]}"; do
# Return true if container doesn't exist
if ! docker ps -a --format='{{.Names}}' | grep -q "$cont"; then
return 0
fi
cont_image_id="$(docker inspect "$cont" --format='{{.Image}}')"
repo_url="$(docker inspect "$cont" --format='{{.Config.Image}}')"
repo_image_id="$(docker image inspect "$repo_url" --format='{{.Id}}')"
if [[ "$cont_image_id" != "$repo_image_id" ]]; then
return 0
fi
done
return 1
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}
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service="$(echo "$2" | sed -E 's/[/ ]//g')"
case "$1" in
pull)
if [[ -z "$service" ]]; then
for serv in "${services[@]}"; do
pull "$serv"
done
elif echo "${services[*]}" | grep -qP "\b$service\b"; then
pull "$service"
else
echo "invalid project name. it should be one of: ${services[*]}."
fi
;;
up)
if [[ -z "$service" ]]; then
for serv in "${services[@]}"; do
pull "$serv"
up "$serv"
done
elif echo "${services[*]}" | grep -qP "\b$service\b"; then
pull "$service"
up "$service"
else
echo "Invalid project name. It should be one of: ${services[*]}."
fi
;;
*)
echo "Invalid action. It should be one of: pull, up."
;;
esac